<template>
  <div class="panel-tab__content">
    <a-card
        title="消息列表"
        :bordered="false"
        size="small"
    >
      <span slot="extra">
        <a-button
            size="small"
            type="primary"
            icon="plus"
            @click="openModel('message')"
        >创建新消息</a-button>
      </span>
      <a-table
          row-key="index"
          :data-source="messageList"
          size="small"
          :pagination="false"
          bordered
      >
        <a-table-column
            data-index="index"
            title="序号"
            width="50px"
            :custom-render="(text, record, index) => `${index + 1}`"
        />
        <a-table-column
            title="消息ID"
            data-index="id"
            width="100px"
        />
        <a-table-column
            title="消息名称"
            data-index="name"
            width="100px"
        />
      </a-table>
    </a-card>
    <a-card
        title="信号列表"
        :bordered="false"
        size="small"
    >
      <span slot="extra">
        <a-button
            size="small"
            type="primary"
            icon="plus"
            @click="openModel('signal')"
        >创建新信号</a-button>
      </span>
      <a-table
          row-key="index"
          :data-source="signalList"
          size="small"
          :pagination="false"
          bordered
      >
        <a-table-column
            data-index="index"
            title="序号"
            width="50px"
            :custom-render="(text, record, index) => `${index + 1}`"
        />
        <a-table-column
            title="信号ID"
            data-index="id"
            width="100px"
        />
        <a-table-column
            title="信号名称"
            data-index="name"
            width="100px"
        />
      </a-table>
    </a-card>
    <a-modal
        v-model="modelVisible"
        :title="modelConfig.title"
        :mask-closable="false"
        width="400px"
        destroy-on-close
    >
      <a-form-model
          :model="modelObjectForm"
          :label-col="{ span: 6 }"
          :wrapper-col="{ span: 18 }"
      >
        <a-form-model-item :label="modelConfig.idLabel">
          <a-input
              v-model="modelObjectForm.id"
              clearable
          />
        </a-form-model-item>
        <a-form-model-item :label="modelConfig.nameLabel">
          <a-input
              v-model="modelObjectForm.name"
              clearable
          />
        </a-form-model-item>
      </a-form-model>
      <template slot="footer">
        <a-button
            size="small"
            @click="modelVisible = false"
        >
          取 消
        </a-button>
        <a-button
            size="small"
            type="primary"
            @click="addNewObject"
        >
          保 存
        </a-button>
      </template>
    </a-modal>
  </div>
</template>
<script>
export default {
  name: 'SignalAndMassage',
  data() {
    return {
      signalList: [],
      messageList: [],
      modelVisible: false,
      modelType: '',
      modelObjectForm: {}
    }
  },
  computed: {
    modelConfig() {
      if (this.modelType === 'message') {
        return { title: '创建消息', idLabel: '消息ID', nameLabel: '消息名称' }
      } else {
        return { title: '创建信号', idLabel: '信号ID', nameLabel: '信号名称' }
      }
    }
  },
  mounted() {
    this.initDataList()
  },
  methods: {
    initDataList() {
      this.rootElements =
        window.bpmnInstances.modeler.getDefinitions().rootElements
      this.messageIdMap = {}
      this.signalIdMap = {}
      this.messageList = []
      this.signalList = []
      this.rootElements.forEach((el) => {
        if (el.$type === 'bpmn:Message') {
          this.messageIdMap[el.id] = true
          this.messageList.push({ ...el })
        }
        if (el.$type === 'bpmn:Signal') {
          this.signalIdMap[el.id] = true
          this.signalList.push({ ...el })
        }
      })
    },
    openModel(type) {
      this.modelType = type
      this.modelObjectForm = {}
      this.modelVisible = true
    },
    addNewObject() {
      if (this.modelType === 'message') {
        if (this.messageIdMap[this.modelObjectForm.id]) {
          return this.$message.error('该消息已存在，请修改id后重新保存')
        }
        const messageRef = window.bpmnInstances.moddle.create(
          'bpmn:Message',
          this.modelObjectForm
        )
        this.rootElements.push(messageRef)
      } else {
        if (this.signalIdMap[this.modelObjectForm.id]) {
          return this.$message.error('该信号已存在，请修改id后重新保存')
        }
        const signalRef = window.bpmnInstances.moddle.create(
          'bpmn:Signal',
          this.modelObjectForm
        )
        this.rootElements.push(signalRef)
      }
      this.modelVisible = false
      this.initDataList()
    }
  }
}
</script>
